A little update..took the control valves apart and found 5 of the 6 filled with sand? not sure, a white grey layer tightly packed, about 1/8 inch thick that I think would be blocking alot of free air flow.I haven't seen any kind of "filter" or screen that would be what this "stuff" is. Also the new Moto parts just got here too so maybe by Saturday I can have everything back together and working!